I'm going to go with Stephanie Plum from the Stephanie Plum series by Janet Evanovich. For the most part Stephanie seems like a normal woman. She was out of work and needed a job; she has a nagging mother; she is divorced (she claims it was the shortest marriage in the world); she has two hot guys who are more than willing to make her happy (she keeps choosing Joe over Ranger though-.-); she lives in a two room apartment; and drives a piece of shit car.
All of that seems fairly normal, right? Wrong. Enter her blackmailing her cousin to get a job as a bounty hunter; her car blowing up (multiple cars and multiple times...including some very nice ones Ranger was letting her use); crazy people kidnapping her; murderers going after her; her apartment being blown up; her friend Lula who happens to be an ex 'ho; and the fact that she has to tell her older than dirt (and crazy) grandmother not to drive or to carry a gun. This all leads to sixteen (soon to be seventeen; and I'm not even counting the inbetween novels) books of hilarity. These books are a must read (as well as any other book by Janet Evanovich because they are just as funny).